– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 10 am Wed 26 Aug Local TimeUpdates in: hr min sUpdate imminent
Issued: 10 am Wed 26 Aug Local Time
Updates in:
Update imminent hr min s
Issued: 10 am Wed 26 Aug Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryModerate rain (total 11mm), heaviest on Fri night. Warm (max 23°C on Wed afternoon, min 11°C on Fri night). Wind will be generally light. | Days 4–6 Weather SummaryLight rain (total 10mm), mostly falling on Mon afternoon. Very mild (max 12°C on Sun morning, min 11°C on Sat morning). Wind will be generally light. | |||||||||||||||||
Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  |  |  | | |  | | |  | | | | | |  | |
clear | clear | some clouds | rain shwrs | light rain | rain shwrs | rain shwrs | rain shwrs | mod. rain | light rain | light rain | cloudy | light rain | light rain | cloudy | light rain | light rain | light rain | |
Cloud base (m) | 4800 | 5950 | 1900 | 2200 | 650 | 850 | 550 | 600 | 600 | 850 | 650 | 650 | 650 | 900 | 550 | 750 | ||
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | — | — | — | 0.6 | 0.3 | 0.5 | 0.5 | 1.4 | 7 | 1.8 | 0.7 | — | 0.3 | 0.4 | — | 0.5 | 5 | 1.1 |
max °C | 21 | 23 | 18 | 16 | 18 | 15 | 14 | 16 | 13 | 11 | 11 | 11 | 12 | 12 | 12 | 12 | 12 | 12 |
min °C | 18 | 23 | 14 | 15 | 17 | 12 | 13 | 15 | 11 | 11 | 11 | 11 | 11 | 12 | 11 | 12 | 12 | 12 |
chill °C | 18 | 23 | 14 | 15 | 17 | 12 | 13 | 15 | 11 | 11 | 11 | 11 | 11 | 12 | 11 | 12 | 12 | 12 |
Freezing level m | 4000 | 3900 | 3400 | 2950 | 2900 | 3000 | 2750 | 2750 | 2550 | 2300 | 2450 | 2600 | 2650 | 2950 | 2750 | 2750 | 2750 | 2500 |
 | 6:15 | — | — | 6:16 | — | — | 6:18 | — | — | 6:20 | — | — | 6:20 | — | — | 6:22 | — | — |
 | — | — | 8:01 | — | — | 8:00 | — | 7:58 | — | — | 7:55 | — | — | 7:53 | — | — | 7:52 | — |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Moderate rain (total 11mm), heaviest on Fri night. Warm (max 23°C on Wed afternoon, min 11°C on Fri night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Light rain (total 10mm), mostly falling on Mon afternoon. Very mild (max 12°C on Sun morning, min 11°C on Sat morning). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.